Evolution – VIDA chart

This chart is used as a graphic organizer to help students understand the process of evolution by natural selection. I use this chart multiple times throughout the unit, basically for each model organism we study.

VIDA means: Variation, Inheritance, Differential Survival and Reproduction, Adaptation. These principles apply not matter what organism you are studying. For example, if you start with the finches of the Galapagos, Variation refers to birds having different sized beaks. Inheritance means that this trait is something that can be inherited or that it is genetic. Differential survival and reproduction means that some birds were better able to survive if their beaks were the best tool for the food on the island. Adaptation means that over time, the frequency of birds with that particular beak increases.